Lindsay Lohan’s druken two-day bender ended yesterday when she allegedly clocked a woman in a Manhattan club, but her drinking problem could be far worse.

A report from TMZ alleges that LiLo’s has been guzzling a startling two liters of vodka per day. Sources tell the gossip Web site that the trainwreck actress is so stressed by her financial situation and her probation violation stemming from her California car crash that she’s hitting the bottle for relief.

The once-promising actress allegedly begins drinking first thing in the morning and continues through the day, the report claims.

Lindsay has a history with substance abuse. A few years ago she was convicted of a DUI after police found cocaine in her crashed car.

Lindsay’s assistant Gavin Doyle took to Twitter to reach out to the “Mean Girls” star.

“@lindsaylohan after bailing you out last night I HOPE and PRAY you get the help you so desperately need. We are ALL rooting for you. xxx,” he tweeted.

The Post reported today that Lohan — depressed over her critically panned Lifetime film “Liz & Dick” — spent the two days prior to her arrest getting blitzed, including a stop at Madison Square Garden Wednesday evening to see Justin Bieber and his opening act, The Wanted.